Romans 14:20= "Do not destroy the work of God for the sake of food."
The works of God in the area of eating:
feel better physically and emotionally
keeps ailments under control
to be an example to others and delivered by God from the addiction of food
the blessing (empowerment to prosper) as a result of obedience to God
more self-control in eating and other areas in life (discipline)
a closer walk with God
faith increased to break the stronghold of the addiction
There are a lot of works God can perform through our obedience in this area. Eat only when hungry and only until full. When you eat when you're not hungry or when you're full, you've destroyed the works for the sake of food (More of Him, Less of Me, Jan Christiansen (1998)).